After ModernisM 2013: ‘AM’A showcase of work by five contemporary artists. The exhibit features Nina Chanel Abney, Justin Craun, Wendell Gladstone, Erik Parks and Tom Sanford. Through Oct. 13. Nassau County Museum of Art, Second Floor Galleries, 1 Museum Dr., Roslyn Harbor. 484-9337 or www.nassaumuseum.org.Alex Katz: Selections from the Whitney Museum of American ArtThis exhibition draws upon the Whitney’s extensive holdings of works by Alex Katz, one of America’s most honored living artists. It includes early landscapes and collages, as well as the enormous and brilliantly-colored portraits of family and friends. Through Oct. 13. Nassau County Museum of Art, 1 Museum Dr., Roslyn Harbor. 484-9337 or www.nassaumuseum.org.Arnold Newman: Luminaries of the Twentieth Century in Art, Politics and CultureAn exhibit of Arnold Newman’s photographic portraiture highlighting the innovative minds and personalities that gave rise to the ideas and concepts that have shaped our world. Recognized as the “Father of Environmental Portraiture” and influenced by the school of modernism, Newman’s style has changed the photographic portrait. Through Dec. 13. Hofstra University’s Emily Lowe Gallery, South Campus, Hempstead. 463-5672. Hans Van de Bovenkamp: In The Present Moment An exhibition showcasing the renowned artist’s black and white drawings and small-scale bronze sculptures. The exhibit provides a glimpse into the artistic processes involved in the creation of Bovenkamp’s works. Through Nov. 14. Adelphi University, Performing Arts Center Gallery, 1 South Ave., Garden City. 877-4010 or www.adelphi.edu/artmuseum/exhibitions.Mysteries of BatsTackapausha Museum and Preserve’snewly reopened exhibit features varied species of bats, including a live family of Egyptian Fruit Bats who fly and “hang out” in the museum’s nocturnal area. Other exhibits include displays about Long Island’s ecology and interactive activities. Tackapausha Museum and Preserve, Washington Ave. (between Merrick Rd. and Sunrise Hwy.), Seaford. 571-7443. Stan Brodsky: RetrospectiveA retrospective celebrating the career of Stan Brodsky, one of the region’s most prominent contemporary artists. The exhibit traces his evolution from early representational works that focus on architectonic structures, through the minimalist landscapes executed during his early years on Long Island, to the Abstract Expressionist works that manifest Brodsky’s deepest engagement with the painting process itself. Through Dec. 1. Heckscher Museum of Art, Main St. and Prime Ave., Huntington. (631) 351-3250 or www.heckscher.org. Using the Lessons of the Holocaust to Teach ToleranceA contextualized history that explains the 1920s’ increase of intolerance, reduction of human rights, and lack of intervention that enabled the persecution and mass murder of millions of Jews and others. Holocaust Memorial and Tolerance Center of Nassau County, 100 Crescent Beach Rd., Glen Cove. 571-8040 ext. 100 or www.holocaust-nassau.org.StargazersJoin the Astronomical Society of Long Island for some skywatching at Old Westbury Gardens, Thursday, Sept. 12, 8:30 p.m. $5. Old Westbury Gardens, 71 Old Westbury Rd., Old Westbury. 333-0048 or www.oldwestbury.org.Afternoon MovieSee Pain & Gain,” about a trio of Florida bodybuilders, with Mark Wahlberg, Friday, Sept. 13, 2:30 p.m.; also “The Big Wedding,” the romantic comedy about a family trying to survive a weekend wedding celebration, with Robert DeNiro and Diane Keaton, Tuesday, Sept. 17, 2 p.m. Elmont Memorial Library Theater, 700 Hempstead Tpke., Elmont. 354-5280.Friday FilmWatch “What Maisie Knew,” a drama about a young girl caught in the middle of her parents’ bitter custody battle, Friday, Sept. 13, 2 p.m. Rockville Centre Public Library, 221 N. Village Ave. Rockville Centre. 766-6257.Movie Showing See “Admission,” the romantic comedy about a Princeton Admissions officer, with Tina Fey, Friday, Sept. 13, 1 p.m. Baldwin Public Library, 2385 Grand Ave., Baldwin. 223-6228.Illustrated Art LectureExamine “Ingres and French Neo-classicism,” with art historian Ines Powell, Monday, Sept. 16, 1 p.m. Peninsula Public Library, 280 Central Ave., Lawrence. 239-3262.Film Time Watch “42,” the story of Jackie Robinson and his history-making signing with the Brooklyn Dodgers, Wedneday, Sept. 18, 2 p.m. Oceanside Library, 30 Davison Ave., Oceanside. 766-2360. Movie MatineeSee “Robot and Frank,” a drama about an aging jewel thief whose son buys him a domestic robot, Thursday, Sept. 19, 2 p.m. Franklin Square Public Library, 19 Lincoln Rd., Franklin Square. 488-3444.